Method of and means for refrigeration



(No Model.) Y

A. J. CHASE & G. F. SMITH,

METHOD OF AND MEANS FOR REFRIGERATION. No. 348,824. Patented Sept. 7, 1886.

HHILEEEES- I VEIEIRL 2% M ZZ'WM 2 53 UNITED STATES PATENT OFFICE.

ANDREW J. CHASE, OF BOSTON, AND CHARLES F. SMITH, OF FITOHBURG,

MASSACHUSETTS.

METHOD OF AND MEANS FOR REFRIGERATION.

SPECIFICATION forming part of Letters Patent No. 348,824, datedseptembez 7, 1886.

Application filed March 13. 1886. Serial No. 105,746. (No model.)

.To aZZ whom it may concern.-

Be it known that we, ANDREW J. CHASE, of Boston, Suffolk county, State of Massachusetts, andCHARL'ES F. SMITH, of Fitchburg,

\Vorcester county, Massachusetts, have invented a new and Improved Gas Condensing and Cooling Method and Apparatus to be Used in Ice Making or other Refrigerating-Machinery; and we hereby declare the following to be a full, clear, and exact description of the same,refercnee being had to the accompanying drawings, making part of this specification,in whicl1- Figure 1 is a side elevation of our improved 1 apparatus. Fig. 2 is a plan view of the same.

Our invention relates to a method and means for the rapid absorption and removal of ca loric from liquids or gases in ice-making or other kinds of refrigerating apparatus.

Our invention consists in a novel method of absorbing and removing caloric from confined liquids or gases by subjecting them to the ac tion of air saturated with moisture in a partial vacuum, intermittent or continuous,where- 2 by the conversion of the moisture in the air into vapor rapidly and certainly absorbs a large number of units of heat from the liquid or gas to be cooled.

Our invention also consists in certain com- 3 binations and arrangements of mechanical de vices, whereby we carry out our novel method, as will hereinafter be fully described, and specifically pointed out in the claims.

In order that those skilled in the art may make and use our invention, we will proceed to describe the exact manner in which we have.

carried it out.

In the said drawings, A is an iron or other easing having heads B B, and within which is arranged a coil, 0, having the inlet a from the ice-making or refrigerating chamber and spraying nozzle or rose, 0, connected to watersupply pipes c c,passing through the walls of pipes D D D.

At the bottom of the drum or casing A is a large exhaust pipe, E, connected with an exhaust-fan, F, for rapidly drawing the air from the drum or casing A.

The rotation of the fan F tends to produce a partial vacuum in casing A, as well as a strong draft through it. As the air flowsinto the casing A,itcomes in contact with the spray of water located in each air-inlet pipe, and produced by pipes c e and spraypipes c 6. This heavily charges the current of air with moisture, and as the current reaches the interior of the casing, where there is a partial vacuum, the moisture is by well-known physical laws converted into vapor. This conversion into vapor necessitates the absorption of a large amount of caloric,which is drawn to a greater or less degree from coil 0 and its contents, thereby cooling or lowering the temperature of the coil and its contents.

Though it is true that the constant tendency of the fan-exhaust is to produce a vaeuum,as 7 5 the capacity of pipe E is greater than the combined capacity of pipes D D D", yet a more complete operation may be accomplished by intermittently opening and closing the rotary valves d to cause apulsatory movement of the air in the casing. This intermittent opening and closing of the valves (1 is accomplished in a ready and desirable manner by applying power-belts to the pulleys d on the valve stems.

It will, from the foregoing description, be readily seen that the rapid expansion of the incoming air will absorb heat readily, and the moisture in the air-current changing suddenly into vapor will also absorb a large increment 0 of caloric. These two elements combined with the third-the strong inilowing current-- will absorb the heat from the coil to an extraordinary degree.

Having thus described our invention, what 5 we claim as new, and desire to secure by Letters Patent, is-

1. The method of refrigeration or cooling herein described, consisting, essentially, in exposing the material to be cooled within a casing, in which is maintained a partial vac- 3. Ina refrigeratingapparatus,substantially mum, to a current of air which is highly as described, the combination of an air-inlet charged with moisture when it enters the 021s pipe,a rotating valve, and stem provided with ing, as set forth. pulley d, for the purpose specified.

5 2. The casing A and interior coil or equiv- I r alent device, in combination with inlet air pipes D D D", provided with valvcs and sprayiug deviees,and pipe E, with its exhaust-fan \Vitnesses:

F, substantially as and for the purpose de- R. K. EVANS,

1'0 scribed. \V. E. CHAFFEE. 

